Abstract:
A series of low-speed wind-tunnel tests have been made to investigate the behaviour of split flaps on one or both surfaces of a delta wing. The investigation is split into two parts described separately in the body of the report. Part I deals mainly with the estimation of the drag of such flaps with special reference to their use as air brakes on aircraft. Part II deals with an investigation into the phenomena of flow re-attachment behind the flaps and its effect on the flap characteristics.
